SMAJ5.0A-E3/1 Transient Voltage Suppressor (TVS) Diode — Equivalent & Substitute Parts

Part Overview

The SMAJ5.0A-E3/1 is a unidirectional Zener-type transient voltage suppressor manufactured by Vishay General Semiconductor - Diodes Division. This surface-mount DO-214AC (SMA) package device is rated for 5V reverse standoff voltage with a 9.2V maximum clamping voltage and 43.5A peak pulse current capability. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	SMAJ5.0A-E3/1
Manufacturer	Vishay General Semiconductor - Diodes Division
Category	Transient Voltage Suppressors (TVS)
Type	Zener
Package / Case	DO-214AC, SMA
Voltage - Reverse Standoff (Typ)	5V
Voltage - Breakdown (Min)	6.4V
Voltage - Clamping (Max) @ Ipp	9.2V
Current - Peak Pulse (10/1000µs)	43.5A
Power - Peak Pulse	400W
Operating Temperature	-55°C ~ 150°C (TJ)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the SMAJ5.0A-E3/1 is determined by strict equivalence across the following critical parameters:

Voltage - Reverse Standoff: 5V (nominal)
Voltage - Breakdown (Min): 6.4V
Voltage - Clamping (Max) @ Ipp: 9.2V
Current - Peak Pulse (10/1000µs): 43.5A or 43.48A
Power - Peak Pulse: 400W
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Type: Zener, Unidirectional

Substitute parts are grouped into two categories:

Category A: Direct Vishay Equivalents (Same Manufacturer, Active Status) These parts maintain identical electrical specifications and differ only in packaging configuration (Cut Tape & Digi-Reel vs. Tape & Reel).

Category B: Cross-Manufacturer Equivalents (Active Status) These parts from alternative manufacturers (MDD, Diodes Incorporated, Micro Commercial Co, Littelfuse Inc., Comchip Technology) meet all critical electrical parameters and package requirements. Minor variations in operating temperature range or capacitance specifications do not affect functional substitution for general-purpose transient voltage suppression applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Voltage - Reverse Standoff	Voltage - Clamping (Max) @ Ipp	Current - Peak Pulse	Power - Peak Pulse	Package	Operating Temperature	RoHS Status
SMAJ5.0A-E3/1	Vishay	Obsolete	5V	9.2V	43.5A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3
SMAJ5.0A-E3/61	Vishay	Active	5V	9.2V	43.5A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3
SMAJ5.0A-M3/5A	Vishay	Active	5V	9.2V	43.5A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3
SMAJ5.0A-M3/61	Vishay	Active	5V	9.2V	43.5A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3
SMAJ5.0A	MDD	Active	5V	9.2V	43.5A	400W	DO-214AC, SMA	-50°C ~ 150°C	ROHS3
SMAJ5.0A-13-F	Diodes Incorporated	Active	5V	9.2V	43.5A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3
SMAJ5.0A-TP	Micro Commercial Co	Active	5V	9.2V	43.5A	400W	DO-214AC, SMA	-55°C ~ 175°C	ROHS3
SZ1SMA5.0AT3G	Littelfuse Inc.	Active	5V	9.2V	43.5A	400W	DO-214AC, SMA	-65°C ~ 150°C	ROHS3
TV04A5V0J-HF	Comchip Technology	Active	5V	9.2V	43.48A	400W	DO-214AC, SMA	-55°C ~ 150°C	ROHS3

Engineering Selection Recommendations

All listed substitute parts are active products with ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing and supply chain requirements.

Preferred Substitutes (Vishay Direct Equivalents): SMAJ5.0A-E3/61, SMAJ5.0A-M3/5A, and SMAJ5.0A-M3/61 are direct Vishay equivalents with identical electrical specifications and operating temperature range. These parts maintain the same series designation (TransZorb®) and differ only in packaging configuration. Selection between these variants depends on procurement packaging requirements (Cut Tape & Digi-Reel vs. Tape & Reel).

Cross-Manufacturer Alternatives: SMAJ5.0A-13-F (Diodes Incorporated), SMAJ5.0A-TP (Micro Commercial Co), SZ1SMA5.0AT3G (Littelfuse Inc.), and TV04A5V0J-HF (Comchip Technology) meet all critical electrical parameters. The Littelfuse SZ1SMA5.0AT3G carries AEC-Q101 automotive qualification and extended lower temperature rating (-65°C). The Micro Commercial Co SMAJ5.0A-TP offers extended upper temperature rating (-55°C ~ 175°C). The MDD SMAJ5.0A variant has a slightly reduced lower temperature limit (-50°C vs. -55°C).

Frequently Asked Questions (FAQ)

Q: Can I substitute SMAJ5.0A-E3/1 with any of the listed parts? A: Yes. All listed parts meet the critical electrical specifications: 5V reverse standoff, 9.2V clamping voltage, 43.5A peak pulse current, and 400W peak pulse power. All are surface-mount DO-214AC (SMA) package devices with ROHS3 compliance.

Q: What is the difference between SMAJ5.0A-E3/61 and SMAJ5.0A-M3/61? A: Both are Vishay TransZorb® series devices with identical electrical ratings and operating temperature range. The difference is in packaging configuration: E3/61 uses Cut Tape & Digi-Reel packaging, while M3/61 uses Tape & Reel packaging. Selection depends on your procurement and assembly process requirements.

Q: Are cross-manufacturer parts (Diodes, Littelfuse, Comchip) fully compatible? A: Yes. All cross-manufacturer substitutes meet the specified electrical parameters and package requirements. Minor variations in operating temperature range or capacitance do not affect functional performance for general-purpose transient voltage suppression. Verify your specific application temperature requirements when selecting between variants with different temperature ratings.

Q: Does the Littelfuse SZ1SMA5.0AT3G offer any advantages? A: The SZ1SMA5.0AT3G carries AEC-Q101 automotive qualification and operates across an extended lower temperature range (-65°C to 150°C vs. -55°C to 150°C). This makes it suitable for automotive and extended temperature applications.

Q: What should I consider when choosing between packaging options? A: Packaging choice (Cut Tape & Digi-Reel vs. Tape & Reel) depends on your assembly process and volume requirements. Cut Tape & Digi-Reel is suitable for lower-volume or mixed-component assembly. Tape & Reel packaging is optimized for high-volume automated assembly lines.

Q: Are all substitute parts currently in stock? A: Inventory status varies by supplier and part number. Refer to current distributor inventory for real-time availability. Vishay direct equivalents (SMAJ5.0A-E3/61, SMAJ5.0A-M3/61) typically maintain higher stock levels due to active product status.

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